EP 0302242 B1 19910724 - PROCESS FOR PREPARING A POLYOLEFIN WITH A LARGE MOLECULAR WEIGHT DISTRIBUTION
Title (en)
PROCESS FOR PREPARING A POLYOLEFIN WITH A LARGE MOLECULAR WEIGHT DISTRIBUTION
Publication
Application
Priority
DE 3723526 A 19870716
Abstract (en)
[origin: US4859749A] A two-stage polymerization process using a modified supported catalyst gives ethylene polymers with very good processability and excellent finished component properties. The supported catalyst used is formed by reaction of a magnesium alcoholate with a titanium-IV compound in suspension and subsequent reaction with a halogen-containing organoaluminum compound and activation of the solid thus obtained by an aluminum trialkyl or aluminum isoprenyl.
IPC 1-7
IPC 8 full level
C08F 2/00 (2006.01); C08F 2/34 (2006.01); C08F 2/38 (2006.01); C08F 4/60 (2006.01); C08F 4/64 (2006.01); C08F 4/655 (2006.01); C08F 4/658 (2006.01); C08F 10/00 (2006.01); C08F 10/02 (2006.01); C08F 210/00 (2006.01); C08F 210/02 (2006.01); C08F 210/16 (2006.01); C08L 23/08 (2006.01)
CPC (source: EP US)
C08F 10/02 (2013.01 - EP US); C08F 210/16 (2013.01 - EP US); Y10S 526/905 (2013.01 - EP US)
Designated contracting state (EPC)
BE DE ES FR GB IT NL SE
DOCDB simple family (publication)
DE 3723526 A1 19890126; AU 1908188 A 19890119; AU 610905 B2 19910530; BR 8803596 A 19890208; CA 1308856 C 19921013; DE 3863865 D1 19910829; EP 0302242 A1 19890208; EP 0302242 B1 19910724; EP 0302242 B2 19980325; ES 2025250 B3 19920316; ES 2025250 T5 19980801; IN 171663 B 19921205; JP 2732857 B2 19980330; JP S6436607 A 19890207; US 4859749 A 19890822; ZA 885128 B 19890329
DOCDB simple family (application)
DE 3723526 A 19870716; AU 1908188 A 19880715; BR 8803596 A 19880718; CA 572246 A 19880715; DE 3863865 T 19880705; EP 88110674 A 19880705; ES 88110674 T 19880705; IN 410MA1988 A 19880616; JP 17530188 A 19880715; US 21865588 A 19880713; ZA 885128 A 19880715